Automatic shearing attachment.



E.F.BUTLER. AUTOMATIO SHEARING ATTAGHMENT.

APPLIOATIOH FILED MAR. 18, 1911.

' Patented Feb. 20-, 1912'.

2 SHEETS-SHEET 1.

E'dwardFBa Tier.

wi lmeaom COLUMBIA PLANOGRAI'H cu., WASHINGTON. n. c.

avwamklow E. F. BUTLER. AUTOMATIC SHEARING ATTACHMENT.

APPLICATION FILED MAILIB, 1911..

1,018,296. v Patented Feb.2l0 ,1912.

2 SHEETS-4312B? 2.

witmmo EdwardFBzz 7Z8? "f is i he ed -drirais'd fromathe guiderestgtopermi he additional thickness --of clothiat- -t-he This liftingmay="-on'ly "be"neces'sary= at 'pr'edetermined riods' of time -on affull length webof clo; Heretofore ithas .been. the

p w fiei a si a" a cutters for allowing -*seams pa'ss"by manual manipulationy thati is vto say, the

lasin by hand offithe said-cutters. Thus,

" I r3 seen =1that it a'eq'ui res' the attention 9f an attendant.

V The iprlmaryi object of .the ir-invention fJhe provisiomof-"an attachment wherein the sh'earing cutters maybe automatically raised for the free passage of the-end -connecting seam of the cloth and similar. excrescences 1n the fabric, without interfering or contacting with the cutters or the read'ustment or correction of the running of fa ric, thereby obviating thenecessity of the attendance of an "operator" for this particular. purpose.

provision of a device of this character which .will automatically raise or lift the cutting mechanism ofth'e machine asor that if any ard substance should get caught in the of fabric, the blade .wilIha-ve been to allow the'hard substance to pass the same without touching it, thus preventing injur to the said cutting mechanism, and at t esame time to the cloth.

-v A further object ofv the invention is the 55 provision of a machine of this character in which the cuttingmechanism will be autop at h a e a y :o'fi W n a lfitment-Vermont;have*' invented ":new and;-

useful 'Improvements in Automatic gshear Attachments Of whic theifollowing v 'mzw-hich the=.cloth-,wi'll be held-xs'mooth: and

iv-prevented ifromtwr'; I ;-and"tgthe-same tiinefthea cuttersgwill beau? -'%tor'natieally z=%shifted for.-esca-pin p creasedtthiclmesses in..-the-;clotha-ron :over-f i or cuttergdthei h s-ti e Another object-ref the invention is the etainees Q amass View 3' ing: the-putter without interference 1 nm'ontaee therewith; thus as-- T ating injury: to theucutt'eru A still "further -object of. the invention is the provision of .aymachine. of this character.

ssuxingsmoothtravel' ofrthe'elotl and *obvidur lapped: seams thereof; -thereby= assuring the iaccurate}, andv positive operation of the 1" ,irnfif Y1- afuntherabject of the ginventioxr is chine: di -character niiplezim nstructiomrthoroiighly:

sin

idn'o'f v 1% a rel-i'able and efiicie'nt iinaoperat on; rand; !in+ expensive 'inimanufacturefi; ZWitlrfiths'e anda-btherkobjects' in:.vie"w,1the 1-invention1consis Sgn' ,the construction, com,-

trated the accompanymg drawings, and pointed *out. ine the-claimszhereunto ap-. ipended, .;.l A.

theadrawings Eiguilewli isia vfsid' e :ele+: vation of 'a'shearin "machine with the attachmentmounted-t ereon.- Fig. 2 is; a; top gplan, vievsrfthereof Fi 3 is asectional view on the :line 3%3 -f0 Fig5'I."- Fig. 4 is 'a front elevation of the machine with the .attachmentthereon.

Similar reference characters-indicate corviews of drawin Referring to the iawings. by numerals, the cloth shearing machine comprises a main frame 5 of. the usual or suitable construction as employed in machines for sup orting the operating parts thereof, and 6 e brackets which rise fromopposite sides-of the frame a 5, the brackets beingin alinement with each other and are provided with bearin or rest extensions 7 on which is m'ounte an oval.-shaped guide beamor bar 8, the-latter being provided 'withlatera'lly extend' wings .9 provided-with suitable-elongated slots, throu h which are passed threaded bolts 10 fixm i in and risin from the bearin or rest extensions 7 an carry the usua winged locking. nuts 11,-wh'ereby the said oval-shaped beam or bar 8 may be adjusted when the occasion requires, and over this beam or bar is drawn the fabric in; the directs ..travel,:

Qrespondmgl parts throughout the several,

athe" binatiom di arrangement of; parts, ,as"will be ahereinafterfr'amore :des cribed*, -;:i1lus-1= 16 -formed on'the ends of verticalstems 17,.

' strikin' ll'eadsrlflf in alinement witbsimilar.

= 1 guide "rollers 29 which'c a're r sfuitably "jour- 4o iSui bly jjmimialejcfonthe e of the a eyliiidricali brush 30, over the saiiie the same being loosely-passed through straps or bridgenpieces 18 suitablyfixed to the up- 1 per edges-l-oi them saidwwing castings 121; These vertical! stems xliT- 'ate provided with.

heads -l f 'onadjustin'g-screws17* which are connectedrwithah-shapedsbrzicketshiw;w the: v

1mm beingsconnectedi yemea :-P

. be'zh' in'aiter more I uu fieh 1 p o risby o s t mw latter bei ng .1. f h orine fw'it iajburnaledethel oribarj 8," the cloth-27 bein tid! i am vn Q u over feedort draftuolls 28;: andif alsd over 11311 thegniain: flame. 5 Iof= the-machine;

. slot ior thfbr ng sheared of its'na'p or-pile; as the said 01th-=-'1sdireetedthrough the" ma- Connected usual the brackets e onj rthe emlothl iepassingmverithe guide the thickened'portions of the fabric or cloth 27 through the machine, without contacting with the said ledger blade and shearing cylinder. g Connected with the rocking supports are 4 weighted counter-balancing arms'or pendulums 32 for equalizing the weight of the shearing cylinder and led er blade carried '"by' theirame supporting the same, it being understood that these weightedcounter-bal ancing arms or-pendulums 32 will assist in the automatic raisin of the shearing frame for. retracting the ledger blade 31, upon the gage roller 14 contacting with overlapped. or

end connecting seams or thickened portions "3 2 of 'the--fabric,;- when passing. over, the guide I beam or bar 8, and will prevent the lowering of thesaid shearin frame too quickly, so'as ,3 to enable the. over apped or end connecting v seamsor thickened portions'ofthe fabrieto, g5

ass the ledger blade 31, without anypossiility soi the said ledger blade cutting thesame rlt will be noted that theiframemay e bejadjustedicloserites ofr the vdesiredadistance awaythe-guide beam -8; :bymeansm the set screws 22,- thereby regulating: the cut-' ting action,- of ,the shearing: cylinder and ledger bla'de'u upona the; cloth Qdirecteda I ,througlnthe'imachine, Also, it is}possi bl e t0 "adjust the-gage'roller14= by5meansof the, 5 1 zad usting screwsf-l'i relative-m th d beam-gorbar 831; ltis' -thought that the automatic roperat on gofsitherrliftingrmechanism,or -,attacl 1 me nt; the shea'ring machine will be clearlypbvious and therefore a more extended explanatio oiitheasame has been. omitted. I -What is claimed is: J\ 1. The combination. with ashearing ma; chine'T having: a guidesb'ar, over -,-wh,1ch5 is v adapted .to:zpass.- cloth, of shearing .n echa nism movably connected withe-said' ;'-bar, means acted-upon'by thecloth-aindeconnecte'dg 1;. with Zsaid' mechanism for automatically? shifting; the same away from such cloth when striking-an obstruction therein and v arin's' 21 -=of 'the fraxneof the cutting me h means' coiiperative with said mechanism for g'pl 'd rbIade'BI,theoperationthere holding. it l1-fted .for afir'edetermmedpenodi 7 area-agave k'no'wfii'yAs hei-eteforejstated; .0f t1m e to'perm1 t-the o structmg portionaof wso theli'liick'etsa19 a ea0nnu t d:byapiy t -.:20; such cloth. to .pass' under: themechanism i Y td G 'arn'isQQI ofjtheQfiaifie 'o'i theshearing fwithout-thestoppmg of the machines- 3,,

.n. uech' and -through clbtlr-27 passes fover the'guid; beamiso thatgitgWil-lf 'obvious that E aiid -thfefseidcloth is thi'ckened at finder-26- irom;the!-cloth,,iand f e 2. The combination with a; shearing-ma chine-having a cloth iding-bar, ofcuttin mechanis'mradapt'ed or movementstowar andaway from said bar, mechanism acted upon.-bystriking the obstructing-. portions! in a piece of-cloth traveling over the. bar; toautomatically shift said cutting--n1'echa-. nism' away. from said baryand meansjolz' .-/v V g I v balancing said mechanism to-permit-the ob t 1/25 a structingportions of the cloth; to pass, unden j the cutting. mechanismwithout the stopping of the machine 1i 3. In an attachment of the class described, A

f ap age f the' end-connecting-seams or the combination with a shearing 139' of a guide bar supported upon said machine and over which is adapted to run cloth, a

swinging cutting mechanism supported by said machine and. having connection with said gage roller, whereby on the displacement of the gage roller by contact with obstructing portions in the cloth, the said cutting mechanism will simultaneously move to enable the obstructing portions in the cloth to pass under the cutting mechanism without the stopping of the machine and countterbalancing means cooperative with the cutting mechanism for momentarily sustaining the latter elevated'when raised.

4. In an attachment of the class described, the combination with a shearing machine, of a guide bar supported upon said machine and over which is adapted to run cloth, a gage roller slidably supported bysaid bar and adapted for contact with such cloth, a swinging cutting mechanism supported by said machine and having connection with said gageroller, whereby on the displacement of the gage roller by contact with obstructing portions inthecloth, the said cutting mechanism will simultaneously move to enable the obstructing portions in the cloth to pass under the cutting mechanism without the stopping of the machine, counterbal ancing means cooperative with the cutting mechanism for momentarily sustaining the latter elevated when raised, and means for adjusting the cutting mechanism.

5. In an attachment of the class described, the combination withv a shearing machine,

m of a guide bar supported upon said frame,

and over which is adapted to run cloth, a gage roller slidably supported by said bar and adapted for contact with such cloth, swinging cutting mechanism supported by said frame and having connection with said gage roller, whereby on the displacement of the gage roller, the said cutting mechanism will simultaneously move therewith, means for adjusting the cutting mechanism toward Copies of thispatent may be obtained forvfive cents each, by addressing and away from the said bar, and weight means cooperative with the cutting mechanism for counter-balancing the same.

6. In an attachment of the class described, the combination with a shearing machine,

a of a guide bar supported upon said frame,

and over which is adapted to run cloth, a gage roller slidably supported by said bar and adapted for contact with such cloth, swinging cuttingj'mechanism supported by said frame and having connection with said gage roller, whereby on the displacement of the gage roller, the said cutting mechanism will simultaneously move therewith, means for adjusting the cutting mechanism toward and away from the said bar, weight means cooperative with the cutting mechanism for counterbalancing the same, and means for independently adjusting the gage roller toward and away from the said bar.

7. In an attachment of the class described, the combination with a shearing machine,

of a guide bar supported upon said machine and over which is adapted to run cloth, a gage roller slidably supported by said bar and adapted for contact with such cloth, a swinging cutting mechanism supported by said machine and having connection with said gage roller, whereby on the displacement of the gage roller by contact with obstructing portions in the cloth, the said cutting mechanism will simultaneously move to enable the obstructing portions in the cloth to pass under the cutting mechanism without the stopping of the machine, means for adjusting the cutting mechanism, and means cooperating with said cutting mechanism for momentarily balancing the same when lifted from the cloth to permit the obstructing portions of the cloth to clear the cutting mechanism.

In testimony whereof I afiix my signature in presence of two witnesses.

EDWARD F. BUTLER. Witnesses CHAS. E. MANDIGO, JAMES E. GAY.

the Commissioner of latents,

Washington, D. G. 

